Fig. 3From: Modified Smith–Petersen approach with rectus-sparing reduces severe avascular necrosis for developmental dysplasia of the hip at walking age: minimum 5-year follow-upa Preoperative pelvic anteroposterior view in a 15-month-old girl on right hip dislocation with the classical Smith–Petersen approach. b–f Radiograph at 10, 40, 54, 75, and 87 months after open reduction, respectively, which shows Type 2 AVNBack to article page